//代码题 二、基于以下代码完成下面四个练习: 
const fp = require('lodash/fp')
const cars = [
    { name: 'Ferrari FF', horsepower: 660, dollar_value: 700000, in_stock: true },
    { name: 'Spyker C12 Zagato', horsepower: 650, dollar_value: 648000, in_stock: false },
    { name: 'Jaguar XKR-S', horsepower: 550, dollar_value: 132000, in_stock: false },
    { name: 'Audi R8', horsepower: 525, dollar_value: 114200, in_stock: false },
    { name: 'Aston Martin One-77', horsepower: 750, dollar_value: 1850000, in_stock: true },
    { name: 'Pagani Huayra', horsepower: 700, dollar_value: 1300000, in_stock: false }
]

//练习4：使用flowRight写一个sanitizeNames()函数，返回一个下划线链接的小写字符串，把数组中的name转换为这种形式，
//例如：sanitizeNames(["Hello World"]) => ["hello_world"]
let _underscore = fp.replace(/\W+/g, '_')  //无须改动，并在sanitizeNames中使用它

//*****实现代码：*****
const sanitizeNames = fp.map(
    fp.flowRight(_underscore, fp.toLower, fp.prop('name'))
)
console.log(sanitizeNames(cars));
// 结果：[
//     'ferrari_ff',
//     'spyker_c12_zagato',
//     'jaguar_xkr_s',
//     'audi_r8',
//     'aston_martin_one_77',
//     'pagani_huayra'
//   ]
